Hi @dvdharkin,
I think ANCOM is a fairly computationally expensive algorithm. It's possible that it can take over an hour to run. Do you have reason to believe that it should complete in under an hour? I would suggest allowing to job to run for longer before canceling it unless you are absolutely sure that it shouldn't take that long.
Aside, from that, in your screen shot, I notice what appears to be some rogue text: table co> on the second line after qiime composition ancom. That looks like a typo to me.